<!--
 * @Description: 边框组件12
 * @Autor: HuiSir<273250950@qq.com>
 * @Date: 2020-09-07 18:00:52
 * @LastEditTime: 2020-09-08 14:41:34
-->
<template>
    <div class="border-box-12">
        <svg class="border-svg-container"
             :width="width"
             :height="height">
            <defs>
                <filter :id="filterId"
                        height="150%"
                        width="150%"
                        x="-25%"
                        y="-25%">
                    <feMorphology operator="dilate"
                                  radius="1"
                                  in="SourceAlpha"
                                  result="thicken" />
                    <feGaussianBlur in="thicken"
                                    stdDeviation="2"
                                    result="blurred" />
                    <feFlood :flood-color="colorToRgba(color[1], .7)"
                             result="glowColor">
                        <animate attributeName="flood-color"
                                 :values="`
                                    ${colorToRgba(color[1], .7)};
                                    ${colorToRgba(color[1], .3)};
                                    ${colorToRgba(color[1], .7)};
                                `"
                                 dur="3s"
                                 begin="0s"
                                 repeatCount="indefinite" />
                    </feFlood>
                    <feComposite in="glowColor"
                                 in2="blurred"
                                 operator="in"
                                 result="softGlowColored" />
                    <feMerge>
                        <feMergeNode in="softGlowColored" />
                        <feMergeNode in="SourceGraphic" />
                    </feMerge>
                </filter>
            </defs>

            <path v-if="width && height"
                  :fill="backgroundColor"
                  stroke-width="2"
                  :stroke="color[0]"
                  :d="`
          M15 5 L ${width - 15} 5 Q ${width - 5} 5, ${width - 5} 15
          L ${width - 5} ${height - 15} Q ${width - 5} ${height - 5}, ${width - 15} ${height - 5}
          L 15, ${height - 5} Q 5 ${height - 5} 5 ${height - 15} L 5 15
          Q 5 5 15 5
        `" />

            <path stroke-width="2"
                  fill="transparent"
                  stroke-linecap="round"
                  :filter="`url(#${filterId})`"
                  :stroke="color[1]"
                  :d="`M 20 5 L 15 5 Q 5 5 5 15 L 5 20`" />

            <path stroke-width="2"
                  fill="transparent"
                  stroke-linecap="round"
                  :filter="`url(#${filterId})`"
                  :stroke="color[1]"
                  :d="`M ${width - 20} 5 L ${width - 15} 5 Q ${width - 5} 5 ${width - 5} 15 L ${width - 5} 20`" />

            <path stroke-width="2"
                  fill="transparent"
                  stroke-linecap="round"
                  :filter="`url(#${filterId})`"
                  :stroke="color[1]"
                  :d="`
          M ${width - 20} ${height - 5} L ${width - 15} ${height - 5}
          Q ${width - 5} ${height - 5} ${width - 5} ${height - 15}
          L ${width - 5} ${height - 20}
        `" />

            <path stroke-width="2"
                  fill="transparent"
                  stroke-linecap="round"
                  :filter="`url(#${filterId})`"
                  :stroke="color[1]"
                  :d="`
          M 20 ${height - 5} L 15 ${height - 5}
          Q 5 ${height - 5} 5 ${height - 15}
          L 5 ${height - 20}
        `" />
        </svg>

        <div class="border-box-content">
            <slot></slot>
        </div>
    </div>
</template>

<script>
import autoResize from '../mixin/autoResize'
import { getRanId, colorToRgba } from '@/utils/myUtils'

export default {
    name: 'borderBox12',
    mixins: [autoResize],
    props: {
        color: {
            //线条色
            type: Array,
            default: () => ['#2e6099', '#7ce7fd'],
            validator(val) {
                return val.length >= 2 //限制颜色为双色
            },
        },
        backgroundColor: {
            //背景色
            type: String,
            default: 'transparent',
        },
    },
    data() {
        const id = getRanId()
        return {
            filterId: `borderr-box-12-filterId-${id}`,
        }
    },
    methods: {
        colorToRgba,
    },
}
</script>

<style lang="scss" scoped>
.border-box-12 {
    position: relative;
    width: 100%;
    height: 100%;

    .border-svg-container {
        position: absolute;
        width: 100%;
        height: 100%;
        top: 0px;
        left: 0px;
    }

    .border-box-content {
        position: relative;
        width: 100%;
        height: 100%;
    }
}
</style>
